package org.zlb.netty.server.serial;

import java.util.concurrent.TimeUnit;

import org.zlb.netty.proto.SubReqProto;

import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.handler.codec.protobuf.ProtobufDecoder;
import io.netty.handler.codec.protobuf.ProtobufEncoder;
import io.netty.handler.codec.protobuf.ProtobufVarint32FrameDecoder;
import io.netty.handler.codec.protobuf.ProtobufVarint32LengthFieldPrepender;
import io.netty.handler.timeout.IdleStateHandler;

public class SubReqProtoServer {
    
    private int port;
    
    public SubReqProtoServer(int port) {
        this.port = port;
    }
    
    public void run() throws Exception {
        EventLoopGroup bossGroup = new NioEventLoopGroup();
        EventLoopGroup workerGroup = new NioEventLoopGroup();
        try {
            ServerBootstrap b = new ServerBootstrap();
            b.group(bossGroup, workerGroup)
             .channel(NioServerSocketChannel.class)
             .childHandler(new ChannelInitializer<SocketChannel>() {
                 @Override
                 public void initChannel(SocketChannel ch) throws Exception {
                     ch.pipeline().addLast(new IdleStateHandler(5, 0, 0, TimeUnit.SECONDS));
                     ch.pipeline().addLast(new ProtobufVarint32FrameDecoder());
                     ch.pipeline().addLast(new ProtobufDecoder(SubReqProto.SubReq.getDefaultInstance()));
                     ch.pipeline().addLast(new ProtobufVarint32LengthFieldPrepender());
                     ch.pipeline().addLast(new ProtobufEncoder());
                     ch.pipeline().addLast(new SubReqProtoServerHandler());
                 }
             })
             .option(ChannelOption.SO_BACKLOG, 1024)
             .childOption(ChannelOption.SO_KEEPALIVE, true);
    
            // Bind and start to accept incoming connections.
            ChannelFuture f = b.bind(port).sync();
            System.out.println("服务端启动成功，端口:"+port);
    
            // Wait until the server socket is closed.
            // In this example, this does not happen, but you can do that to gracefully
            // shut down your server.
            f.channel().closeFuture().sync();
        } finally {
            workerGroup.shutdownGracefully();
            bossGroup.shutdownGracefully();
        }
    }
}
